Pulmonology is a medical speciality that deals with diseases involving the respiratory tract.[1] The term is derived from the Latin word pulmō, pulmōnis ("lung") and the Greek suffix -λογία, -logia ("study of"). Pulmonology is synonymous with pneumology (from Greek πνεύμων ("lung") and -λογία), respirology and respiratory medicine.

Respiratory system complete en.svg
Schematic view of the human respiratory system with their parts and functions.
Significant diseasesAsthma, Lung Cancer, Tuberculosis, Occupational lung disease
Significant testsBronchoscopy, Sputum studies, Arterial blood gases
SpecialistRespiratory Physician, Pulmonologist

Pulmonology is known as chest medicine and respiratory medicine in some countries and areas. Pulmonology is considered a branch of internal medicine, and is related to intensive care medicine. Pulmonology often involves managing patients who need life support and mechanical ventilation. Pulmonologists are specially trained in diseases and conditions of the chest, particularly pneumonia, asthma, tuberculosis, emphysema, and complicated chest infections. [2]

Journals of pulmonologyEdit

History of pulmonologyEdit

One of the first major discoveries relevant to the field of pulmonology was the discovery of pulmonary circulation. Originally, it was thought that blood reaching the right side of the heart passed through small 'pores' in the septum into the left side to be oxygenated, as theorized by Galen; however, the discovery of pulmonary circulation disproves this theory, which had previously been accepted since the 2nd century. Thirteenth century anatomist and physiologist Ibn Al-Nafis accurately theorized that there was no 'direct' passage between the two sides (ventricles) of the heart. He believed that the blood must have passed through the pulmonary artery, through the lungs, and back into the heart to be pumped around the body. This is believed by many to be the first scientific description of pulmonary circulation.[3]

Although pulmonary medicine only began to evolve as a medical specialty in the 1950s, William Welch and William Osler founded the 'parent' organization of the American Thoracic Society[4], the National Association for the Study and Prevention of Tuberculosis[5]. The care, treatment, and study of tuberculosis of the lung is recognised as a discipline in its own right, phthisiology[6]. When the specialty did begin to evolve, several discoveries were being made linking the respiratory system and the measurement of arterial blood gases, attracting more and more physicians and researchers to the developing field.[7]

Pulmonology and its relevance in other medical fieldsEdit

Surgery of the respiratory tract is generally performed by specialists in cardiothoracic surgery[8] (or thoracic surgery)[9], though minor procedures may be performed by pulmonologists. Pulmonology is closely related to critical care medicine[10] when dealing with patients who require mechanical ventilation. As a result, many pulmonologists are certified to practice critical care medicine in addition to pulmonary medicine. There are fellowship programs that allow physicians to become board certified in pulmonary and critical care medicine simultaneously. Interventional pulmonology is a relatively new field within pulmonary medicine[11] that deals with the use of procedures such as bronchoscopy[12] and pleuroscopy to treat several pulmonary diseases[13]. Interventional pulmonology is increasingly recognized as a specific medical specialty[14].


The pulmonologist begins the diagnostic process with a general review focusing on:

Physical diagnostics[16] are as important as in other fields of medicine.

As many heart diseases can give pulmonary signs,[17] a thorough cardiac investigation is usually included.


Clinical proceduresEdit

Pulmonary clinical procedures include the following pulmonary tests and procedures[18][19]:

Surgical proceduresEdit

Major surgical procedures on the heart and lungs are performed by a thoracic surgeon[25]. Pulmonologists often perform specialized procedures to get samples from the inside of the chest or inside of the lung. They use radiographic techniques to view vasculature of the lungs and heart to assist with diagnosis.

Treatment and therapeuticsEdit

Medication is the most important treatment of most diseases of pulmonology, either by inhalation (bronchodilators and steroids) or in oral form (antibiotics, leukotriene antagonists). A common example being the usage of inhalers in the treatment of inflammatory lung conditions such as asthma or chronic obstructive pulmonary disease. Oxygen therapy[26] is often necessary in severe respiratory disease (emphysema and pulmonary fibrosis). When this is insufficient, the patient might require mechanical ventilation.

Pulmonary rehabilitation[27] has been defined as a multidimensional continuum of services directed to persons with pulmonary disease and their families, usually by an interdisciplinary team of specialists, with the goal of achieving and maintaining the individual's maximum level of independence and functioning in the community. Pulmonary rehabilitation[28] is intended to educate the patient, the family, and improve the overall quality of life and prognosis for the patient. Interventions can include exercise, education, emotional support, oxygen, noninvasive mechanical ventilation, optimization of airway secretion clearance, promoting compliance with medical care to reduce numbers of exacerbations and hospitalizations, and returning to work and/or a more active and emotionally satisfying life. These goals are appropriate for any patients with diminished respiratory reserve whether due to obstructive or intrinsic pulmonary diseases (oxygenation impairment) or neuromuscular weakness (ventilatory impairment). A pulmonary rehabilitation team[29] may include a rehabilitation physician, a pulmonary medicine specialist, and allied health professionals including a rehabilitation nurse, a respiratory therapist, a physical therapist, an occupational therapist, a psychologist, and a social worker among others. Additionally breathing games are used to motivate children to perform pulmonary rehabilitation.

Education and trainingEdit


Physician performing a bronchoscopy.
  • Pulmonologist
  • Pneumonologist
  • Respirologist
Occupation type
Activity sectors
Education required
Fields of
Hospitals, clinics

In the United States, pulmonologists are physicians who, after receiving a medical degree (MD or DO), complete residency training in internal medicine, followed by at least two additional years of subspeciality fellowship training in pulmonology[30]. After satisfactorily completing a fellowship in pulmonary medicine, the physician is permitted to take the board certification examination in pulmonary medicine. After passing this exam, the physician is then board certified as a pulmonologist. Most pulmonologists complete three years of combined subspecialty fellowship training in pulmonary medicine and critical care medicine.

Pediatric pulmonologistEdit

In the United States, pediatric pulmonologists[31] are physicians who, after receiving a medical degree (MD or DO), complete residency training in pediatrics, followed by at least three additional years of subspeciality fellowship training in pulmonology.

Scientific researchEdit

Pulmonologists are involved in both clinical and basic research of the respiratory system, ranging from the anatomy of the respiratory epithelium to the most effective treatment of pulmonary hypertension. Scientific research also takes place to look for causes and possible treatment in diseases such as pulmonary tuberculosis and lung cancer.


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  2. ^ Sengupta, Nandini; Sahidullah, Md; Saha, Goutam (August 2016). "Lung sound classification using cepstral-based statistical features". Computers in Biology and Medicine. 75 (1): 118–129. doi:10.1016/j.compbiomed.2016.05.013. PMID 27286184.
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  5. ^ Jacobs, Henry Barton (1904-12-03). "National Association for the Study and Prevention of Tuberculosis". Journal of the American Medical Association. XLIII (23): 1712. doi:10.1001/jama.1904.02500230042014. ISSN 0002-9955.
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  12. ^ Seijo, Luis M.; Sterman, Daniel H. (2001-03-08). "Interventional Pulmonology". New England Journal of Medicine. 344 (10): 740–749. doi:10.1056/NEJM200103083441007. ISSN 0028-4793. PMID 11236779.
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